List of Famous people with last name Halfdansson

Eystein Halfdansson was the son of Halfdan Hvitbeinn of the House of Yngling according to Norse tradition. He inherited the throne of Romerike. Ari Thorgilsson in his Íslendingabók calls him Eystein the Fart without comment, in his king list, just naming his father and his son. Snorri does not call him by this nickname, but does give us a colorful story of his life.

Hemming Halfdansson was "of the Danish race, a most Christian leader". He was probably a son of Halfdan, a leading Dane who became a vassal of Charlemagne in 807. He was probably related to the Danish royal family, as "Hemming" was one of their favoured names. The onomastic evidence includes the Danish king Hemming I and then a Hemming II, who was recalled to Denmark from Francia by his brothers Harald Klak and Reginfrid after Hemming I's death. This Hemming was probably the same person as Hemming Halfdansson. He probably soon returned to Francia, since there is no evidence of him in Danish politics after he and his brothers were driven out by the sons of Godfrid in 813.